257ack
Silver $$ Contributor
like Dusty said, If you fireform with a 6mm bullet, you dont need to neck turn till after fireforming. This is probably the best method because you get straighter necks. If you fireform with 308 bullets, then of course you will have to neck turn in order to chamber the round. And as shooter 13 said, you need to measure the neck with the seated bullet that you will be using. I put my tube mic. away and go by the outside measurement of a seated bullet to adjust my neck turner